1. [ noun ] a barrier that has parallel or crossed bars blocking a passage but admitting air
Synonyms: grate
Related terms: barrier grille grate
2. [ noun ] a frame of iron bars to hold a fire
Synonyms: grate
Related terms: framework stove furnace grate
3. [ adjective ] unpleasantly harsh or grating in sound
Synonyms: rough rasping gravel raspy gravelly

"a gravelly voice"

Related terms: cacophonous
4. [ noun ] (physics,optics) optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum
Synonyms: diffraction_grating
Related terms: optical_device echelon
Similar spelling:   gratingly